diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 8e1da3668..9b8910d8a 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -6,7 +6,7 @@ dependencies:
 - coverage
 - matplotlib-base =3.8.2
 - nglview =3.0.8
-- numpy =1.26.0
+- numpy =1.26.2
 - phonopy =2.20.0
 - plotly =5.18.0
 - pymatgen =2023.11.12
diff --git a/.ci_support/environment_mini.yml b/.ci_support/environment_mini.yml
index ddbb914c2..127279796 100644
--- a/.ci_support/environment_mini.yml
+++ b/.ci_support/environment_mini.yml
@@ -3,6 +3,6 @@ channels:
 dependencies:
 - ase =3.22.1
 - coverage
-- matplotlib-base =3.8.2
-- numpy =1.26.0
+- matplotlib-base =3.7.2
+- numpy =1.26.2
 - scipy =1.11.4
diff --git a/setup.py b/setup.py
index 63c624b30..20815a039 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
     install_requires=[
         'ase==3.22.1',
         'matplotlib==3.8.2',  # ase already requires matplotlib
-        'numpy==1.26.0',  # ase already requires numpy
+        'numpy==1.26.2',  # ase already requires numpy
         'scipy==1.11.4',  # ase already requires scipy
     ],
     extras_require={